Hire the Best JasperReports Specialists
in Ukraine

I specialize in developing Java web applications using Spring framework. From RESTful Web services to narrowly specialized apps for text recognition and other enterprise tasks. Both front-end and back-end. Also, I can design a relational database using any system you want. Skills: - Java - Spring Framework - Spring Boot - Keycloak - Vert.x - Quarkus - Vue.js - Vaadin Framework - JAX-RS - Hibernate - JSP - Freemarker - Thymeleaf - HTML/CSS - JavaScript - jQuery - Bootstrap - Tesseract OCR, Nicomsoft OCR - MySQL, PostgreSQL, Informix IBM SQL, SQLite - ElasticSearch - MongoDB I have a master degree in Software Engineering from Kyiv Polytechnic Institute. As a developer, I have also taken part and won large number of hackathons.

🚀 Senior Java Developer with 14+ Years of Experience in Scalable Software Solutions As a Java Developer I specialize in building robust, scalable, and high-performance software systems using Java, Spring Boot, and modern API architectures. 💼 My Expertise: ✅ Java ✅ Spring Boot, Spring Cloud, Spring Security ✅ Microservices Architecture ✅ REST API / OpenAPI / Swagger ✅ SAP Hybris for eCommerce ✅ Frontend with React and Angular ✅ API Development & Integration ✅ Cloud Services – AWS, Docker 🔍 What I Offer as a Java Developer Over the years, I’ve contributed to a wide variety of Java-based projects — from enterprise-level platforms to e-commerce systems — helping clients convert ideas into real, revenue-generating software. I bring not just technical expertise, but also strategic thinking to each Java or Spring Boot-based application I build. ✅ Services I Provide: 🔧 Web & Backend Development (Java, Spring Boot) 🔌 API Design & Integration 🔄 Microservices with Spring Cloud 🛒 SAP Hybris eCommerce Solutions 📊 Custom CRM systems 🌐 Data Scraping and Automation 💻 Full-stack Solutions with Java + React 🧩 Tech Stack: Backend (Java & Spring): ✔️ Java, Spring Boot, Spring Cloud, Spring MVC, Spring Security, Kafka ✔️ REST API, OpenAPI, Swagger, JSON, XML ✔️ Hibernate, JPA, Quartz, Lombok ✔️ Java Concurrency, Servlet, JUnit, Mockito Frontend: ✔️ React, Angular, JavaScript, TypeScript ✔️ TailwindCSS, Bootstrap, HTML, CSS, LESS DevOps & Tools: ✔️ Git, GitHub, GitLab ✔️ Docker, Maven, Gradle, Tomcat ✔️ Postman, SoapUI, AWS (S3, EC2) ✔️ MySQL, MongoDB ✔️ IntelliJ, VS Code, JIRA, Confluence 🤝 Why Work With Me? 🗣️ Transparent communication & detailed Java-based estimates 📈 Focus on maintainable, high-quality Spring Boot code 🧠 Deep understanding of Java API integrations and real-world use cases 🕹️ Able to work independently or as part of a distributed team If you’re looking for a reliable Java Developer who knows how to turn requirements into rock-solid Spring Boot applications — I’d be happy to help. Let’s connect and build something great with Java. 🚀

Welcome to my Upwork profile! My name is Sofiia and I'm a talented Java Developer with 2 years of experience. My expertise is Backend development. In the nearest future I see myself as a successful and professional Java developer, so I am ready to do everything to become who I want to be. Coder at heart, I'm sure, we're not wasting each other's time! Backend: Java Frontend: HTML, CSS –basic, JavaScript Frameworks: Spring Framework (SpringMVC, Spring Boot, Spring Data, Spring Security) ORM: Hibernate Testing: JUnit, Mockito, JMeter VCS: Git (GitHub) Relational databases: MySQL, PostgreSQL,MongoDB, SQLite Build automation tools: Maven, Gradle API documentation tools: Open API, Swagger Clouds: AWS IDE: IntelliJ IDEA, Android Studio Payments: Stripe Search: ElasticSearch Other: REST API, Design Patterns, Log4j , Lombok, Thymeleaf, Docker, Postman, Liquibase, Ajax, Google Vision API, Tesseract OCR, OpenCV, OpenCSV, Stanford Core NLP, Apache POI, Apache PDFbox, Apache Server, SonarLint. Feel free to text me back and we'll discuss everything!

Hi everyone! I am an Oracle Certified full-stack Java developer with huge experience writing secure code. I have been working on banking software for one of our local banks in Ukraine for more than 9 years. And it’s not a single experience I have, also I have worked on eCommerce projects, and participated in the development of hiring platforms, and tools for the CA Gen environment. My main goal is to create long-term relationships with my clients and build qualitative and reliable applications. I like to learn new technologies and move on with the latest trends in IT industry. I am an easy-talk-to person and think that communication is important in the development field. Feel free to message me, I will be glad to answer all your questions! These are my key skills: Backend: Java 6+, JavaEE, JavaSE Spring (Spring boot, Spring JPA, Spring data, Spring security and other Spring modules) Hibernate SQL DBs (MySQL, Oracle, PostgreSQL, SQLite) Non SQL DBs (Redis, Mongo) Elastic (full-text search and complicated full-text search) Amazon S3, AWS Thymeleaf Jasper Report jBOSS JBPM JUnit Frontend: ZK Ajax JSP, PrimeFaces HTML, XML Groovy Angular React Others JavaFX Git, SVN Docker SDK Eclipse/IntelliJ Idea Have a nice day!

⭐ Certified Odoo Partner | AI & n8n Specialist | Business Analyst | 15+ Years | 100% Job Success⭐ Are you looking for a seamless Odoo integration or a complex technical customization that actually drives ROI? With over 15 years of experience in software development and ERP systems, I don't just write code - I architect scalable business solutions. As a Certified Odoo Partner, I bridge the gap between complex business requirements and high-quality technical execution. 🚀 HOW I CAN HELP YOUR BUSINESS: • BUSINESS ANALYSIS & STRATEGY: I dive deep into your internal processes to create a clear Odoo roadmap. My goal is to ensure Odoo fits your business, not the other way around. • INTELLIGENT AUTOMATION & AI: I build autonomous workflows using n8n and LLMs (Gemini/OpenAI). I specialize in AI-driven OCR and Computer Vision to extract structured data from screenshots, PDFs, and emails, transforming "black holes" into automated Odoo records. • FULL-STACK DEVELOPMENT: Expert in Python, PostgreSQL, and OWL. From custom module development to complex Odoo Frontend/E-commerce tasks and high-end OWL components. • IMPLEMENTATION & MIGRATION: Seamlessly moving your legacy data (from NetSuite, SAP, or Excel) into Odoo and deploying on Odoo.sh, AWS, or self-hosted servers (Linux, Docker, Nginx). • THIRD-PARTY INTEGRATIONS: Connecting Odoo with external systems, shipping providers, payment gateways, and mobile apps via XML-RPC, JSON-RPC, and custom REST APIs. • REPORTING & SPECIALIZED OUTPUT: High-end business reporting (QWEB, XLS, PDF) and specialized ZPL / ZPL II code development for Zebra printers and automated warehouse hardware. 🛠 TECHNICAL EXPERTISE & STACK: • CORE: Python3, PostgreSQL, ORM principles, Linux (Ubuntu/Debian). • AI, COMPUTER VISION & OCR: Leveraging Google Gemini and n8n for automated image analysis, text extraction from screenshots, and smart document classification. • FRONTEND: OWL (Odoo Web Library), JavaScript, SCSS, XML, Odoo CMS. • AUTOMATION & INTEGRATIONS: n8n, REST API, Webhooks, XML-RPC, JSON-RPC. • DEVOPS: Docker, NGINX, GitHub/Bitbucket, Performance Tuning, Odoo.sh. • MODULES: CRM, Manufacturing (MRP), Inventory, Accounting, HR & Payroll, Sales/Purchasing, and E-commerce. 🏆 PROVEN RESULTS (REAL CASE STUDIES): • INTELLIGENT AI AUTOMATION: Developed an n8n-based solution with Google Gemini for LedPax (Canada/USA). Implemented Computer Vision and OCR to automatically process logistics emails, extracting structured data from screenshots to update Odoo Purchase Orders in real-time. • COMPLEX MIGRATIONS: Successfully migrated SA Baxter (USA) from NetSuite to Odoo, streamlining high-end manufacturing and accounting workflows without a single byte of data loss. • RAPID DEPLOYMENT: Launched a full-scale CRM & Sales system for Droplet (Netherlands) in a record 10 days, enabling immediate lead tracking and automated follow-ups. • INTERNATIONAL COMPLIANCE: Implemented Odoo 17 for Lviv Croissants (France), ensuring 100% compliance with strict EU/French fiscal regulations and complex POS hardware integration. • DATA-DRIVEN GROWTH: Developed custom integrations for Exxentric (Sweden), syncing Odoo with WooCommerce, BigQuery, and Stripe for advanced predictive sales forecasting. • CHAOS TO ORDER: Replaced fragmented systems (Excel, Bitrix, Messengers) for Autocolor with a unified Odoo environment, reducing manual operational tasks by 40%. 🌍 INDUSTRY EXPERIENCE: I have successfully delivered Odoo solutions for: Manufacturing & Food Production eCommerce & Retail Healthcare & Education Sports Equipment & Entertainment "My mission is to transform your manual workflows into a streamlined, automated ERP ecosystem." Whether you need a full-scale implementation, a custom module, or end-user training, I am ready to help your business grow. I look forward to the opportunity to work with you!

I have 8 years experience of backend development. During this time I worked in many IT companies and projects. I develop enterprise applications on Java. My technology stack includes: Java; Multithreading; SpringBoot; Spring Security, JWT, OAuth 2, Keycloak; Spring Data JPA, Hibernate; Docker, Kubernetes; Microservice architecture; REST API development; AWS infrastructure; Unit tests; Maven; Jenkins; Git, Bitbucket; Apache Kafka; MySQL, PostgreSQL, MongoDB, Redis. I usually work using Jira, Confluence, Slack, IntelliJ IDEA. I prefer to work in team, so Agile and Scrum are my best friends. Also I can create websites and landing pages using different CMS. And I'm an expert in WordPress. I know PHP, MySQL, JavaScript, jQuery, HTML5, CSS3, Smarty, and I have other skills. I am an adherent of the purity code. I am a prudent and meticulous person. You can watch my sources on Bitbucket: bitbucket.org/gribozi